Fabric coating machine



Sept. 11, 1945. F. B. QUINN ETAL 2,384,695

FABRIC COATING MACHINE Filed Nov. 17, 1944 INVENTORS BY Z? @464 PatentedSept. 11, 1945 Francis B.v Quinn, Thompsonville, and Robert G.

Levitch, Enfleld, Conn., assignors to Bigelow- Sanford Carpet 00., Inc.,Thompsonvllle, Conn, a corporation of Massachusetts Application November17, 1944, Serial No. 563,858

3 Claims. (01. 91-31) Our invention relates to fabric coating machinesand particularly to machines for coating cord fabrics with arubbersolution, such fabrics being used in vehicle tires.

The object of the invention is to improve the eiliciency of suchmachines and ,to remedy the delffcts experienced in previous machines ofthis so Fig. 1 shows a cross-section of our machine,

and

Fig. 2 shows a modification. Referring to Fig. 1, the chamber A is openat the top and bottom and has sides Al and A2. It-

is supported on a frame above a trough Al containing the rubbersolution. A roll 6 dips into the rubber solution in the tank and carriesthe fabric into and out of the tank. Located above the roll 6 is a guideroll which guides the fabric from the chamber to the roll 6.

Above the chamber is a guide roll I, which is so positioned withrelation to the guide roll 5, that the entering dry cloth, which passesover guide roll I from a source of supply, is held in contact with theoutside surfaces of'the rolls 2, l and l which are arranged verticallyabove one another in the chamber. Locatedin the chamber opposite thespaces between rolls and 3 and between 3 and 4 are rolls 1 and 8. Therolls are so related to one another that the dry cloth passes down. incontact with the outside surfaces of rolls 2, I and 4, and, afterpassing through the solution and arounddip roll 8, the wet cloth passesupwards in contact with the inside surfaces of and preferably are about4 to 6 in. in diameter,

are of polished steel and are rotated at high speed, by any suitablemeans, not shown, so that they thus have a surface speed of about to 30ft. per

I second, preferably in the direction of the feed'of ary. Thus themachine enables high production .efliciency and low production cost tobe attained.

rolls 8 and l, the cloth being carried, as shown, about the rolls 5, a,b, c and d.

The cloth is pulled through the apparatus b any suitable means, notshown. a

By means of this arrangement, one or both sets of burnishing rolls arecleaned by the ingoingfabric and the eflicient removal of excesssolution from the fabric is achieved and consequently a solution ofhigher solids content may be employed than has been the previouspractice and because of the low moisture content in the fabric a higherdrying speed may be used than has been custom- We claim:

1. A fabric coating machinehaving in combination a chamber open at topand bottom and having vertical sides, two sets of burnishing rollstherein, said rolls being rotated with a surface speed of from 15 to 30feet per} second, the rolls in each set being in alignment with eachother. a tank located below said chamber and adapted to contain a rubbersolution, a roll dipping into said tank, means to guide the incoming dryfabric against the sides of the rolls of one set with which sides thewet fabric does not contact and means to guide the wet fabric againstthe opposite sides of said rolls and against the other set of rolls insaid chamber.

2. In fabric coating apparatushaving a tank for holding a coatingsolution and opposed sets of burnishing rolls for removing excesssolution coated on fabric passed through the tank, in combination, guiderolls for directing a fabric from a the cloth. The rolls, due to theirhigh surface 4 speed burnish the cloth and eifectively remove excesssolution from the surfaces of the cloth and from the fabric, to theincoming cloth which wipes these rolls and: keeps them in a cleancondition whereby their efllciency in removing excess solution from thefabric is greatly enhanced.

In the apparatus of Fig. 2, the incoming cloth wipes not only the rolls2, I and l, but also the source oi! supply through the tank, and thencebetween and against opposed faces of the burnishing rolls, includingguides directing the fabric, prior to its passage through the tank,against and across the outside faces of the burnishing rolls of at leastone set.

3. In fabric coating apparatus having a tank for holding a coatingsolution and opposed sets of burnishing rolls for removing excesssolution coated'on fabric passed through the tank, in combination, guiderolls for directing a fabric from a source of supply through the tank,and thence between and against opposed faces of the burnishing rolls,including guide rolls directing the fabric, prior to its passage throughthe tank,

against and across the outside faces of both sets of the burnishingrolls.

- mamas a. QUINN. 1 ROBERT e. mvrrca.

